I was starting out with getting projects, which have an ID, and then continued to discover that todolists don't return an ID – that's why I was kind of expecting it to be there.

I know I can get the ID from the URL like it was in the old API, it just seemed convenient to have the ID to build up the URL for adding todos to that list. An addTodoUrl key would be even more loved, of course!

So guess it's not an oversight, so this issue may safely be closed, I'd say.